Universe Test review

How is dark energy related to the theory of the Big Bang? (Lesson 6)

• It causes the expansion of the universe to accelerate.

• It seeded the formation of galaxies and star clusters.

• It causes the universe to expand.

• It causes the spinning of galaxies.

Which of the following statements provide evidence to support the big bang theory? Select the two correct answers. (Lesson 3)

• The universe began as a very high density singularity.

• • Small spiral galaxies become larger elliptical galaxies when they collide.

• • The ratios of hydrogen and helium in the universe match those of the early universe.

• Dark matter makes up the majority of matter in the galaxy.

As evidence supporting the Big Bang theory, what does the redshift of light from galaxies indicate? (Lesson 4)

• The universe is expanding.

• The universe is cooling off.

• The universe is 13.8 billion years old.

• The universe is mainly hydrogen.

How does weak background radiation coming from every direction in the sky support the Big Bang Theory?

• The universe's increasing mass

• The universe is expanding

• The universe's decreasing mass

Which statements describe ways that nuclear fission is different than nuclear fusion? Select the two correct answers.

• • Nuclear fission is used to produce electricity at nuclear power plants.

• • Nuclear fission involves one large atom splitting into two smaller atoms.

• • Nuclear fission releases a huge amount of energy.

• • Nuclear fission takes place in the nucleus of an atom.

Which of these items provide evidence supporting the Big Bang theory? Select the two correct items. (lesson 4)

• cosmic background radiation

• sizes and shapes of distant galaxies

• composition of matter in the universe

• rate of star formation 

Which represents a correct match between ideas related to the formation of the universe? Select the two correct answers.

• glowing nebulae — dark energy

• structures forming in the early universe — dark matter

• accelerating expansion — dark energy

• greatest percent of mass of universe — dark matter

How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory?

• The universe is cooling which, according to the Big Bang Theory, is expected to happen as the cosmos disperses.

• The universe is cooling which, according to the Big Bang Theory,  is expected to happen as the cosmos accumulates.

• The universe is warming which, according to the Big Bang Theory, is expected to happen as the cosmos disperses.

Which characteristic is dark matter and which is baryonic matter? (lesson 5)

Groups:

(a) Dark Matter

,

(b) Baryonic Matter

• interacts with baryonic matter

• interacts with electromagnetic radiation

• has been observed directly

• does not interact with baryonic matter

• does not interact with electromagnetic radiation

• has not been observed directly

Which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?

• The mass flutcuates greatly

• the mass is uniform

• the temperature is uniform

• the temperature fluctuates greatly